JPS609407Y2 - Air cleaner device - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an air cleaner device used for two-wheeled motor vehicles, three-wheeled vehicles, etc.

Conventionally, as a device of this type, one is known in which a connecting tube to the carburetor is inserted into a through hole in the front of an air cleaner case, and a fitting at the front end of a cleaner element housed in the case is inserted into the tube. In this case, the element is generally fixed within the case using a spring, band, etc., and tools are required to attach and detach the spring and band, and there is a risk of losing these springs, bands, etc. when attaching and detaching. For this reason, there is an inconvenience in that the attachment/detachment work is time-consuming.

The purpose of the present invention is to provide a device that eliminates such inconvenience, and a connecting tube 4 to a carburetor 3 is inserted into a through hole 2 on the front surface of an air cleaner case 1, and the tube 4 is connected to the inside of the case 1. In a device for inserting a cap 6 at the front end of a cleaner element 5 housed in the device, a protrusion 7 having a hook portion 7a at the tip is attached to the cap 6 at the front end of the element 5.
At the same time, the hook part 7a is planted on the inner wall of the case 1.
A board 10 having an arc-shaped locking hole 9 with an insertion hole 8 at one end that can be freely inserted and removed is mounted, and the edge of the locking hole 9 of the board 10 is inserted into the locking hole 9. It is formed into an inclined surface 11 that is inclined forward toward the other end, and the portion of the inner peripheral surface of the tube 4 into which the cap 6 is inserted is formed into a tapered surface 12 having a small diameter toward the front. Features.

For example, as shown in FIG. 1, the air cleaner case 1 is installed in a two-wheeled motor vehicle or three-wheeled vehicle, with the intake port 15 on the top surface facing into the ventilation gap between the seat 13 and the rear fender 14 on the bottom surface of the seat 13. , and is connected to the carburetor 3 at the front through the connecting tube 4 at the front.

The protrusion 7 is constituted by a T-shaped stud whose head is a hook portion 7a, and is implanted by welding or other means into the mouthpiece 6 at the front end of the cleaner element 5 at three equally spaced locations.
Further, the substrate 10 is constituted by an annular plate having a bent edge lea on the inner circumference that is fitted to the inner circumference of the insertion portion of the connecting tube 4 into the through hole 2, and is connected to the case at the outer circumferential edge thereof. 1, and the arcuate locking holes 9 described above were bored at three locations on the same circumference in correspondence with each of the protrusions 7.

In the drawings, reference numeral 16 indicates a stopper/rotary operator protruding from the rear end of the element 5, and reference numeral 17 indicates an opening/closing lid on the side surface of the case 1.

Next, to explain its operation, the cleaner element 5 is installed by first inserting the hook portion 7a at the tip of each protrusion 7 into the insertion hole 8 at one end of each locking hole 9, and then inserting the element 5 into the operator 16. This is done by rotating it in the direction of the arrow in FIG.

According to this, the element 5 is guided by the inclined surface 11 of the hole edge of each locking hole 9 and moves forward as shown in FIG. The element 5 comes into contact with the tapered surface 12 on the inner circumference of the connecting tube 4 and is press-fitted into the inside thereof, and the tube 4 and the mouthpiece are joined airtightly, and the element 5 resists the pressure force between the tube 4 and the mouthpiece 6. This state is maintained by the elasticity of the substrate 10.

It should be noted that when the opening/closing lid 17 is attached to the element 5, the end face of the operator 15 comes into contact with the lid 17, and this also prevents rotation.

As described above, according to the present invention, the cleaner element 5 includes the protrusion 7 having the hook portion 7a at the tip, and the cleaner case 1.
A board 10 having an arcuate locking hole 9 is attached to the base plate 10, and this can be easily done by inserting the hook 7a into the insertion hole 8 at one end of the locking hole 9 and rotating the element 5. It can be fixed to the case 1, and there is no need to use special tools for attaching and detaching it, and since the protrusions 7 and the board 10 are already attached to the element 5 and the case 1, there is no risk of losing them. Also, the hole edge of the locking hole 9 is formed as an inclined surface 11, and the inner circumferential surface of the connecting tube 4 is formed as a tapered surface 12, so that the element 5 is caused to move forward according to the inclined surface 11 by its rotation. With this advancement, the front end cap 6 is press-fitted into the tapered surface 12, and the tube 4 and the cap 6 are airtightly joined at the same time as the element 5 is attached to the case 1. It has the effect that can be obtained.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway side view showing the installed state of the air cleaner, Fig. 2 is an enlarged cutaway plan view of the main part showing the proposed device, and Fig. 3 is a partially cutaway side view showing the installed state of the air cleaner.
The figure is a front view taken along the line ■--■ in FIG. 2, and FIGS. 4 and 5 are cross-sectional views of the locking hole portion and the base portion for explaining the operation thereof. 1...Air cleaner case, 2...Through hole, 3...Carburetor, 4...Connecting tube, 5...Cleaner element, 6・・・
...Base, 7...Students, 7a...
Hook portion, 8... Insertion hole, 9... Locking hole, 10... Substrate, 11... Inclined surface, 1
2...Tapered surface.

Claims (1)

[Scope of utility model registration request] Carburetor 3 is installed in the through hole 2 on the front of the air cleaner case 1.
In this case, a connecting tube 4 is inserted into the tube 4, and a cap 6 at the front end of the cleaner element 5 housed in the case 1 is inserted into the tube 4. A board 10 in which a protrusion 7 having a hook 7a is implanted and an arcuate locking hole 9 having an insertion hole 8 at one end that allows the hook 7a to be freely inserted and removed is bored in the front inner wall of the case 1. and an inclined surface 1 in which the hole edge of the locking hole 9 of the substrate 10 is inclined forward toward the other end of the locking hole 9.
1, and the base 6 on the inner peripheral surface of the tube 4.
An air cleaner device characterized in that a portion into which the air cleaner is inserted is formed into a tapered surface 12 having a small diameter toward the front.